Dual-Wavelength DFB Erbium-Doped Fiber Laser With Tunable Wavelength Spacing

Villanueva, G.; Pérez-Millán, Pere; Palací, Jesús; Cruz, J.L.; Andrés, Miguel V.; Martí, J.

doi:10.1109/lpt.2009.2038594

Cited by 55 publications

(42 citation statements)

References 15 publications

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“…In the future, dual wavelength QCLs can be made more flexible in terms of tuning by the use of more complicated gratings as reported for near-infrared lasers [28,29]. Along this line, higher-order multi-mode operation (triple-mode or more) can be made possible, as well as dual-mode QCLs with a larger mode separation.…”

Section: Resultsmentioning

confidence: 99%

Frequency stability of a dual wavelength quantum cascade laser

et al. 2017

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Abstract:We characterized the dual wavelength operation of a distributed Bragg reflector (DBR) quantum cascade laser (QCL) operating at 4.5 μm using two independent optical frequency discriminators. The QCL emits up to 150 mW fairly evenly distributed between two adjacent Fabry-Perot modes separated by ≈11.6 GHz. We show a strong correlation between the instantaneous optical frequencies of the two lasing modes, characterized by a Pearson correlation coefficient of 0.96. As a result, we stabilized one laser mode of the QCL to a N 2 O transition using a side-of-fringe locking technique, reducing its linewidth by a factor 6.2, from 406 kHz in free-running operation down to 65 kHz (at 1-ms observation time), and observed a simultaneous reduction of the frequency fluctuations of the second mode by a similar amount, resulting in a linewidth narrowing by a factor 5.4, from 380 kHz to 70 kHz. This proof-ofprinciple demonstration was performed with a standard DBR QCL that was not deliberately designed for dual-mode operation. These promising results open the door to the fabrication of more flexible dual-mode QCLs with the use of specifically designed gratings in the future.

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Section: Resultsmentioning

confidence: 99%

Frequency stability of a dual wavelength quantum cascade laser

et al. 2017

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“…In this way, a dualwavelength laser signal is obtained as the combined emission of two cascaded single-wavelength DFB fiber lasers. This scheme is conceptually different from the one presented in [12], which was based on one unique dual-wavelength DFB laser. Each section has a different grating period and a local phase shift in its center.…”

Section: Dual-wavelength Operating Principlementioning

confidence: 88%

“…When two phase shifts are induced in the periodic structure of a uniform FBG, two transmission peaks appear in the transmission stop-band response. This phenomenon was exploited in a previous work to perform a tunable dual-wavelength fiber laser [12], where two phase shifts were induced in the grating using two PZTs. The phase shifts could be controlled dynamically, thus allowing dynamic control of the wavelength difference.…”

Section: Dual-wavelength Operating Principlementioning

confidence: 99%

High frequency microwave signal generation using dual-wavelength emission of cascaded DFB fiber lasers with wavelength spacing tunability

Villanueva¹,

Palací²,

Cruz³

et al. 2010

Optics Communications

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“…A lot of dual-wavelength fiber lasers with different structures have been reported [1][2][3][4][5][6][7][8][9], e.g. moiré distributed feedback (DFB) fiber laser [1], distributed Bragg reflector (DBR) fiber laser [2], chirped DFB fiber laser [3], cascaded DFB fiber laser [4], and sampling grating fiber laser [5].…”

Section: Introductionmentioning

confidence: 99%

“…The distributed feedback fiber laser (DFB-FL) attracts more attention for its compact dimension and ultra narrow linewidth since the first invention [10]. The dual-wavelength DFB-FL owning these above advantages has been achieved by introducing two phase shifts [6] or two equivalent phase shifts [7,8] locally.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on dual-wavelength distributed feedback fiber laser

Song

Guo

et al. 2014

Photonic Sens

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Four distributed feedback fiber lasers with dual-wavelength operations were studied experimentally in detail. The laser characteristics of these distributed feedback fiber lasers (DFB-FLs) were investigated. The operation conditions for the dual-wavelength output are analyzed and presented. Through this study, the guidance of the design and fabrication of some dual-wavelength distributed feedback fiber lasers are provided.

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Dual-Wavelength DFB Erbium-Doped Fiber Laser With Tunable Wavelength Spacing

Cited by 55 publications

References 15 publications

Frequency stability of a dual wavelength quantum cascade laser

Frequency stability of a dual wavelength quantum cascade laser

High frequency microwave signal generation using dual-wavelength emission of cascaded DFB fiber lasers with wavelength spacing tunability

Experimental study on dual-wavelength distributed feedback fiber laser

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